| Value | Category | Cases | |
|---|---|---|---|
| 0 | 132 |
83%
|
|
| 1 | 17 |
10.7%
|
|
| 2 | 6 |
3.8%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 1 |
0.6%
|
|
| 8 | 1 |
0.6%
|
|
| 13 | 1 |
0.6%
|
|
| Sysmiss | 1 |